Web-roll renewer.



. PROCTOR.

WEB ROLL RENEWER.

APPLICATION FILED JUNE 26. 1912.

. A I W Patented July 27, 1915.

3 SHEEIS- SHEET I.

ATTORN EYJ A. W. PROCTOR.

WEB ROLL RENEWER.

APPLICATION FILED JUNE 26, 1912.

Pautented July 27, 1915.

WITNESSES 1? A. W. PROCTOR.

WEB ROLL RENEWER.

APPLICATION FILED lUNE26| 1912.

Patentd July 27, 1915.

3 SHEETSSHEET 3.

WITNESSES INVENTOR ALFRED W. PROCTOR, OF NEW YORK, N. Y., ASSIGNOR TO B. HOE AND 00., OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

WEB-ROLL RENEWER.

Specification of Letters Patent.

. Application filed June 26, 1912. Serial No. 705,928.

following specification and the accompanylug drawings, forming a part of the same.

This invention relates to the supply of new web rolls in printing and similar ma chines.

The webs in printing machines travel at speeds of many hundred feet per minute, and the paper is always of more or less frail or weak texture and some times exceedingly so. Moreover, the webs are frequentl many feet in width, and the rolls in whic the paper is supplied are so large as to have considerable inertia, besides being heavy and awkward to handle. These various conditions make it difiicult to replace an expiring web roll by a new roll of paper without stopping the press.

In some cases the change from an expiring to a new web roll has been made in a printing press while running it at avery low speed, the supply roll and running web being simultaneously deflected into contact with one another by hand. Inother cases the change has been made wholly by hand manipulation.

The present invention contemplates a change from an expiring to a new web roll without breaking or in uring the web or stopping the press, or any skilled manipulation on the part of the workmen, and'by the use of mechanism which is not complicated, or liable to get out of order, but which is easy to construct and manipulate and durable.

The invention particularly contemplates the change from an expiring to a new web roll, with the largest sized rolls, the weakest and frailest papers, and without loss of time due to stoppage or protracted slowing down ofthe press.

One of. the objectsof the invention is to produce an improved machine in which web rolls are received on fixed locations or axes in the press, which position they maintain untilexpired, after which the path of the web is changed to a new web roll, leaving the core of the expired roll free to be removed from its original position.

' A further object of the invention is to pronde an improved roll change mecha- Patented July 27, 1915.

nism in which there is no slack or loose web present in the press during the change from one web roll to another, and further in which the web is not subjected to any sud- 'den shock such as might arise from a pull on 'a new web rollhaving a somewhat different speed from the travel of the web in the press.

A further object of the invention is to provide improved mechanism for bringing the new web roll to speed in a positive manner, so that 1ts peripheral portion will not vary from a certain definlte and controllable speed precisely equal to that of the web in the press.

A further object of the invention is to provide an improved mechanism for moving the web from one position to another in the press so that it can be shifted from the expiring to the new web roll.

A further object of the invention is to provide an improved means for holdin the running web against the periphery of the new web roll during the removal of the outside layers; in other words, until the paper is 1gunning smoothly and evenly off of the ro In the drawings Figure 1 is a side elevation partly in section and partly diagrammatic, showing a web roll suppl mechanism embodying the principles of this invention. Fig. 2 is an end view showing a detail. Fi 3 is a sectional view showlng a modifie construction. Fi 4 is a side view of the same, and Fig. 5 1s a detail sectional view of one of the parts adapted to be employed in this construction.

Constructions embodying the invention will include a means for transferring the path of the web, preferably by causing it to travel from one web roll having a fixed axis to another web roll having a fixed axis of rotation.

In both forms of construction as illustrated in the drawings, the web rolls are received on fixed axes in themachine. That is to say, each web roll has a definite osition or location in a printin machine w ere it is received before the we is run off, and from which it is removed after the web is run off. Any suitable fixed bearings and web tensioning and adjusting means may be provided to receive the spindles of the web rolls A and B, for example the t pe of bearings and web tensionmg an adjusting means ordinarily used for holding single web rolls in present iprinting machines. ,For this reason these eatures have not been illustrated in Fig. 1.

Means are provided for transferring theweb feed from one web roll to the other which may vary in practice, but in the best constructions embodying the invention there are two parallel rock frames 1, (one on each side of the press) each having a slide-way 2 extending lengthwise thereof, the rockframes having trunnions 3 on which they pivot or fulcrum at the middle of their length. They may further be constrained to rock in union by link connections 4 to a common rock shaft 5. In the slide-ways 2 of these rock-frames are contained trucks 6, each of saidtruckshaving bearings for two web lead rollers 7, 8. lhese rollers turn loosely, and a normally stationary shaft 9 extends through one of the rollers carrying a pinion 10 at each end. These pinions will mesh with racks 10 on the respective rock- .frames 1. In this way the rollers 7, 8 and their tracks 6 may be walked up and down on the rock-frames 1 to either end thereof. A suitable hand wheel 11 will be employed to turn the shaft 9.

Means are provided for rocking the rockframe 1 on its trunnions, and additional means are provided for bringing the respective web rolls A and B to the proper speed. Means are also shown by which there is a cooperation between the bringing of the respective web rolls to speed and the movement of the rock-frame 1, the cooperation being such that the rock-frame 1 is not displaced until the proper web roll is brought fully up to speed. Without this fea ture it is possible that the running web might be injured by a rough surface on the new web roll which was traveling at a somewhat lower speed. It might also happen, where the web roll is brought to speed through several turns of rotation, that the running web might come in contact with the pasted end of the new web roll prematurely, thus tearing the web or otherwise interfering with the functions of the machine.

The means for bringing the new web rolls -to speed are of such a character that the rolls have a peripheral speed exactly equal to the speed of the running web when the pasting is done, notwithstanding variations in size of the web rolls; this power being transmitted positively to the web rolls from their axes of rotation, and not frictionally to the peripheries of the rolls.

The means for starting the web rolls in rotation is shown in Fig. l to include a circuit closer 11, a magnetic clutch 12, and a spiral pulley 13 driven through the magnetic clutch, the magnetic clutch being gears 20 which in turn have spur gears 21 driving gears 22 on the spindles of the respective web rolls A and B. A slip clutch 26 will be provided, with this form of the invention, on part of the shaft 16, so that the main portion of the shaft may continue its rotation, although the lower portion is arrested.

In addition to the features thus far described, there may be provided a means for determining the speeds to which the web rolls A and B are brought.

This mechanism may also vary, but as shown includes a block 23 on the cable 14-, this cable running through an abutment screw 25, so that the block 23 will contact with the end 24: of this screw after the cable has been. pulled a certain distance. The screw in turn is pro jected from a sleeve 27 having a limited movement longitudinally of the cable, being normally projected outward by a spring 29. The projection of the screw 25 from the sleeve 27 may be varied by a hand-wheel 28 adjustable with relation to a scale 28. This mechanism just-described further constitutes a convenient practical arrangement for de termining the time of the movement of the web transferring means, so that the running Web is not brought into contact with a new web .roll until after the latter has been brought to a proper speed. 30 designates an air cock in a pipe 37, the air being turned on by this cock when the sleeve 27 is pushed inward. Also forming part of this air cock is an arm of an electrical switch 34. which breaks the circuit of the magnetic clutch 12 at the same time that the air cock turns the air off. The air cock supplies air to either end of a cylinder 31 selectively, the selection being determined by cocks 32 and 33. This air cylinder has a piston connected to the rock frame 1, so as to throw the latter either in one direction or the other, so that the running web may be pressed against either the upper or the lower web roll.

The web will pass as shown at W, for example, although normally the rollers 7, 8 will be at a mid-position of the rock-frames 1 while the main body of the web roll is being run oil". When a roll, for example the lowerroll B is about to expire, the rollers 7, 8 will be walked to the upper position shown. The machine is now ready to make a flying paste. This is accomplished by closing the switch 11. This completes a circuit through the magnetic clutch 12 which starts the spiral pulley 13, driven from the press, and having one or two or more spiral turns. This pulls, slowly at first but with increasing speed, upon the cable 14 which is wrapped around the reversely arranged spiral pulley 15 on the Vertical shaft 16. It should be understood that at this time the clutch 17 is engaged and the clutch 17 is disengaged. The effect is to rotate the vertical shaft 16 and through thebevel gears 19 and 20 and gears 21 and 22 to cause the upper paper roll A to start slowly into rotation and steadily gather speed during perhaps one or two turns. The speeding up continues until the block 23 on the cable 14 -meets the, abutment 24 formed by the end of screw 25. \Vhen this occurs a further speeding up of the paper roll is prevented, but the speed already attained is continued by reason of the slip clutch 26 of ordinary form. Inasmuch as the abutment screw 25 may be projected more or less from its supporting sleeve 27, the degree of speeding up is adjustable, and is set by the scale 28 to exactly suit the diameter of the particular paper roll.

The engagement of the block 23 with the abutment screw 25 is accompanied by a certain limited depression of the screw 25 and also its screw sleeve 27 against the spring 29. This movement has the effect of opening the circuit of the'magnetic clutch 12, and also opens a valve 30 which admits air to the cylinder 31 as already described. Valves 32 and 33 have already been set by hand so that the air will be admitted to the left end of the cylinder 31 under the circumstances now under consideration. The admission of air to this cylinder of course propels the piston thereof inward and rocks the rockframes 1 lefthandedly in the drawing and makes the paste. Of course the air pressure can thereafter be left on to a greater or less extent, the rock-frame simply following the diminution of size of the upper paper roll until the frame 1 has reached its limit of rocking movement.

As soon as the paste is made, a lever or an electric switch may be operated either by hand or automatically to discontinue the expiring web, for example by projecting a knife blade 35 or similar device from an idler roller 36 in which such knife is conthan a turn is preferable since it require s less force, but the force in any case is not so great, as proved by mathematical calculation and practice, but that it maybe readily transmitted through the usual iron core on WhlCll the paper is supplied from the mills. Of course the paste is applied after the paper rolls are 1n place, being brushed by hand onto the front or exposed side of the roll, the paper being further suitably serrated at this location and bonded, if desired.

For a two, three or four deck ress the mechanism described is du licate in art above that already describe The sha t 16 and the means for turning it are however common to the whole system, no matter how many decks are used. The air pipe'37 will moreover be merely extended at 38 to additional cylinders similar to 31 andprovided with hand operated cocks similar to 32 and 33.

In some cases the location of the press in the building is such that the rolls of paper may be supplied from the side of the press rather than from the end. In this case the disposition of the parts may be somewhat modified, and I prefer to have the rolls of paper on fixed axes in the same horizontal plane rather than on axes above one another as already described. Certain other modifications may be made without departing from the spirit and scope of the invention, for example, in the means for speeding up the respective web rolls, and in the means for transferring the running web from one web roll having a fixed axis to another. As an illustration of these features and others which need not be specifically mentioned, Figs. 3, 4 and 5 are added to the drawings. The web rolls are here brought to a certain speed on their axes of fixed location, with considerable abruptness, not over a single turn being ex ended in bringin the roll from a state 0 rest to a state of its highest speed, corresponding to the speed of the web in the press. In order to do this a force of somewhat higher magnitude is required than where more turns are made use of. An illustration of a mechanism particularly adapted for these purposes comprises a chuck 45 with a roughened or frictional face which may be provided to engage one end of the web roll, being forced by pressure against such end so as to grip it firmly. The power for rotating the web roll is applied to this chuck rather than to the roll spindle, and is transmitted through a drum and cable rather than through a shaft or shafts, following the principles of elevator construction in this respect, so that the mechanismmay be particularly positive and durable in its action.

'In Fig. 3 the chuck 45 is shown with a rubber facing 46, and is projected through a rotatable face plate 47 by a head 48 formpressure cylinder 54 may be provided for forcing the sleeve 49 and the chuck 45 to the left in Fig. 3, when desired, thus gripping the end of the web roll firmly. The roll spindle 56 revolves in an outer bearing 57, the lower half 58 of which may be removed -or swung downward. This bearing is further pivoted on a depending arm 60 which may swing outward, thus permitting the lateral removal of the web roll from this side of the machine. An extension 62 of the spindle 56 carries a nut 63 which may be tightened as shown, thereby taking the thrust of the chuck 45. As a means for laterally adjusting the position of the web roll an ordinary brake adjustment 64 may be used.

The shaft 50 is positively rotated through power connections to speed up the web roll. For this purpose a slip clutch 66 carries a pulley 67, and also has a sleeve 68 with an other pulley 69. Sleeve 68 has a limited angular movement with respect to the pulley 67, but is constrained in one direction by the springs 70. Cables or tension members 72 and 73 extend partly around the respective pulleys 67 and 68 in opposite directions, being anchored to the respective pulleys. These cables or tension members are further anchored to points on the circumference of a pulley 75 having two grooves 76 and 77. The groove 7 6 is spiral or of gradually enla rged character circumferentiall y. The arrangement is such that the cables 72 and 7 3 are held under tension by the springs 70, and this tension is maintained notwithstanding the rotation of the pulley 75, the different lengths required in the cables beingcompensated for by the yielding of the springs 70. so that the cables are always held tight. The pulley 75 may be positively clutched or attached to a drum 80 by any suitable means. The drum 80 carries a gear 84 meshing with a rack 85 driven by an air cylinder 86. The outward projection of the rack 85 is limited, as by an abutment 87 which is screw-threaded, and which may be adjusted by turning a hand-wheel S8. The position of this handwheel is adjusted for different sized web rolls by a scale 89. lVithin the drum 80 is a shaft 91 driven from the mechanism of the press that is to say in gear with the impression cylinders. A slip clutch 92 (diagrammatically shown in Fig. 4) connects the shaft 91 with the drum 80, so that the drum cannot travel at a faster rotative speed than the shaft 9-1.

The web is guided by rollers and 101 forming part of a roll carriage which may be made to travel between the two extreme positions shown by hand-wheel 103, this mechanism being similar to that already de-. scribed in Fig. 1. 104 designates a knife extending from an arm 105 which is pivoted to the frame of the machine coaxially with one of the web rolls. This knife may be swung around to sever the web when desired, when expiring from either web roll.

It may be imagined that the web roll is running normally with the roll carriage at some intermediate position of its travel. When the left hand web roll in Fig. 4 is about to expire, the roll carriage is walked into its extreme right hand position so that the running web contacts with the full web roll. Air is now admitted into the cylinder 86, it being understood that the abutment 87 has first been properly adjusted. The effect is to pull on the cable 72 and thereby positively rotate the shaft 50, which through the chuck 45 starts the new web roll in rotation during about half or three-fourths of a turn. This is sufficient to bring the freshly pasted extremity of the paper into contact with the running web which at this time is traveling over the surface of this roll. The roll continues in its-rotation by reason of its momentum, such rotation beingpermitted by the slip clutch 66.

The core of the expired web is removed by unscrewing the nut 63 and swinging out the bearing 60. Carriage C is shown for inserting roll and removing spindle.

According to the description as thus far presented, the pulley 75 has been treated as 100 though fixed to the drum 80. In ordinary practice, however, the drum 80 serves as a common driving means for a number of pulleys 75 for all the web rolls of the press, as indicated by full line circles in Fig. 4. In Fig. 5 the drum 80 is shown in section and a plurality of pulleys 75 are indicated thereon. These pulleys will be selectively clutched to the drum 80 by any suitable means, bolts 81 received in sockets 82 being illustrated. In practice any suitable positive clutches will be employed. It will therefore be understood that either the web rolls at the left hand side of Fig. 4 or the web rolls at the right hand side in this figure, are speeded up in substantially the same way, in other words by the operation already described. The cables 72 and 73 will, however, not be crossed in running to the web rolls on the left hand side in order hand web roll in the manner already de- 180 scribed will result in making the paste, af-

, ter which the expiring web is severed. The

paste will thus be made first on oneside of the machine and then on the other, in alternate succession.

What I claim isa 1. A device for furnishing a continuing web su ply to a machine having a running web wlthout stopping the running web,-

comprising a pair of axes'on which new web.

rolls are recelved, said axes having a fixed location in the machine,- and means for transferring the path of; the running web from one web roll to the other and then back again to the first in alternate succession.

2. A device for furnishing a continuing "web supply to a machine having a running web, without stopping the runnin web, comprising a pair of axes on -Wh1C new web rolls are received, said axes havmg a fixed location in the machine, means for bringing said rolls selectively to a predetermined speed, and means for transferring the path of the running web from oneweb roll to the other and then back again to the first in alternate succession.

3. A device for furnishing a continuing web supply to a machine having a running web, without stopping the running lweb, comprising a pair of axes on which new web rolls are received, said axes havingJ a fixed location in the machine, means for rin ing said rolls selectively to a predetermine eripheral speed, and means for. transferrm the path of the running web from one-we roll to the other and then back again to the first in alternate succession.

4. A device for furnishing a continuing web supply to a machine having a running web without stopping the running web, comprising a pair of axes on which new web rolls are received, said axes having a fixed location in the machine, means for selectively bringing the web rolls to speeds which may be varied in amount independently of the speed of the web in the machine, and means for transferring the path of the running web from one web roll to the other, and then back again to the first in alternate success1on.

5. In a device for furnishing a continuing Web supply to a machine havlng a running web, without stopping the running web,

means for receiving a new web roll, means for bringing said new web roll to a s eed which may be varied independently o the speed of the running web in the machine, and means controlled by the new roll rotating means for attaching the end of the new web to the end of the expiring web.

6. In a device for furnishing a continuing web supply to a machine havmg a running web, without stoppingthe running web, means for receiving a new web roll, means web r01 independently of the s eed of the I runnin web, and means contro led by the new" rol rotating means for attaching the end of the new web to the end of the expiring web.

8. In a Web supply to a machine havmg a running web, without stopping the running web, means for receiving a new web roll, means for rotating the new web roll on its axis at .predetermined and variable annular velocities, said means acting independently of the enphery of the roll, and means controlled y t e new roll rotating means for attaching the end of the new web to the end of the expiring web.

device for furnishing a continuing 9. In a device for furnishing a continuing web supply to a machine having a running web, without stopping the running web, means for receiving a new web roll, means acting independently of the periphery of the new web roll for bringing the latter from a state of rest to a predetermined but variable speed, and means controlled by the new roll rotating means for attaching the end of the new web to the end of the expiring web.

10. In a device 'for furnishing a continuing web supply to a machine havin a running web, without stopping the running web, means for receiving a new web roll, means for rotating the new web roll at an increasing speed, and means controlled by the new roll rotating means for attaching the end of the expiring web to the new web when the new web roll attains a certain predetermined 7 speed.

11. In a device for furnishing a continuthe new web roll, for rotating the latter at an increasing speed, and means controlled by the new roll rotating means for attaching the end of the expiring web to the new Web when a predetermined speed is attained.

12. In a device for furnishing a continuing'web supply to a machine having a running web, without stopping the running web, a member having a continuously increasing rotating speed, means for driving the new web roll from saidmember, means for checking the increase of the speed of the new web roll when the latter has attained a predetermined speed, and means for attaching the end of the new web to the end of the expiring web.

13. In a device for furnishing a continuing Web supply toa machine having a running web, without stopping the running web, a member having a continuously increasing rotating speed, means for driving the new web roll from said member, means for auto matically checking the increase of the speed of the new web roll when the latter has attained a predetermined speed, and means for attaching the end of the new web to the end of the expiring web. I

14. In a device for furnishing a continuing web supply to a machine havin a running web without stopping the runnlng web, means on which the new web roll is received,

means including a pulley having a spiral peripheral portion for bringing the new web roll to a selected speed, and means for attaching the end of the new web to the end of the expiring web.

15. In a device for furnishing a continuing web supply to a machine having a running web without stopping the runnmg web, an axis on which a new web roll is received, means including a pulley having a spiral peripheral portion, a tension member acting thereon for bringing the new web roll to a predetermined speed, and means for attaching the end of the new web to the end of the expiring web.

16. -A device for furnishing a continuing web supply to a machine having a running web without stopping the running web, comprising a pair of axes on which newweb rolls are received, said axes having a fixed location in the machine, means for imparting to said web rolls a predetermined speed of angular rotation, and

means controlled by the new roll rotating means for attaching the end of the expiring web to the end of the fresh web.

17. In a device for furnishing a continuing web supply to a machine having a running web, without stopping the running web, comprising a pair of axes on which new web rolls are received, means for imparting a predetermined speed of angular rotation to the respective rolls, and means for transferring the path of the running web from one Web roll to the other and then back again to the first in alternate succession.

18. A device for furnishing a continuing web supply to a machine having a running web without stopping the running 19. A device for furnishing a continuing web supply to a machine having a running web without stopping the running Web,

comprising a pair of axes on which new web rolls are received, said axes having fixed locations in the machine, a rock-frame, a roll carriage on said rock-frame, and means for walking the roll carriage from one end to the other of the rock-frame whereby the path of the running web is transferred from one web roll to the other, and then back again tothe first in alternate succession.

20. A device for furnishing a continuing web supply to a machine having a running web, without stopping the running web, comprising a pair of axes on which new web rolls are received, said axes having a fixed location in the machine, a power means for selectively rotating the web rolls on their respective axes, and means for transferring the path of the running web from one web roll to the other, and back again to the first in alternate succession?- 21. A device for furnishing a continuing web supply to a machine having a running web, without stopping the running web, comprising a pair of axes on which new web rolls are recelved, said axes having a fixed location in the machine, means for transferring the path of the running web from one web roll to the other, and then back again to the first in alternate succession, and'means for discontinuing the web supply from the expiring roll.

22. A device for furnishing a continuing web supply to a machine having a running web without stopping the running web, comprising a pair of axes on which new web rolls are received, said axes having a fixed location in the machine, means for transferring the path of the running web from one web roll to the other, and then back again to the first in alternate succession, and pneumatic means for forcin the running web against the respective we rolls.

23. A device for furnishing a continuing web supply to a machine having a running web without stopping the running web, comprising a pair of axes on which new web rolls are received, said axes having a fixed location in, the machine, means for transferring the path of the running web from one Web roll to the other, and then back again to the first in alternate succession, and means for forcing the running web against the respective web rolls.

24. A device for furnishing a continuing web supply to a machine having a running web without stopping the running web, comprising a pair of axes on which new web rolls are received, said axes having fixed locations in the machine, a rock-frame, a roll carriage on said rock-frame, a pair of rolls forming part of said roll carriage between which the web is led, and means for traveling the roll carriage from one end to the other of the rock frame, whereby the path of the running web is transferred from one web roll to the other and then back again to the first in alternate succession.

25. A device for furnishing a continuing web supply to a machine having a running.

taetalternately with a new web roll on one axis and then with a new Web roll on the other axis.

26. A device for furnishing a continuing web supply to a machine having a running web without stopping the running web, comprising a pair of axes on which new web rolls are received, said axes having a fixed location in the machine, means for bringing said rolls selectively to a predetermined speed, a guiding device for the running web, and means for moving the guiding device in opposite directions to bring the running web into contact alternately with a new web roll on one axis and then with a new web roll on the other axis.

27. A device for furnishing a continuing web supply to a machine having a running web without stopping the running web, comprising a pair of axes on which new web rolls are received, said axes having a fixed location in the machine, means for selectively bringing the web rolls to speeds rections to bring the running we mto contact alternately with a new web roll on one axis and then with a new web roll on the other axis.

28. A device for furnishing a continuing web supply to a machine having a running web without stopping the running web, comprising a pair of axes on which the new web rolls are received, said axes having a fixed location in the machine, a pair of web guide rollers, and means for shifting the guide rollers whereby a continuous web passing between said rollers may be brought into contact alternately with a new web roll on'one axis and then with a new web roll on the other axis.

In testimony whereof, I have hereunto set my hand, in the presence of two subscribing witnesses.

ALFRED W. PROCTOR. Witnesses:

C. J. SAWYER, J. A. 'GRAVES. 

